Curated OER
Designing a Flotation Strategy for the Purification of Recycling
Twelfth graders work in teams to design a method of recycled plastics purification by flotation. They base their design on the concept that different kinds of plastics have different densities and keep overall costs and purification time...
Curated OER
Avogadro's Law
Young scholars study Avogadro's law and what it means in science. In this gaseous instructional activity students complete an Avogadro's law experiment.
Science Education Resource Center at Carleton College
Serc: Measuring Liquid Volume
In this lab, middle schoolers will measure and combine colored liquids to receive the expected results. The intended outcome would be to take primary colored liquids, measure them and combine them to create a "rainbow" colored set of...
Chemistry Collective
Chem Collective: Measuring the Heat Capacity of an Engine Coolant Ii
Measure and compare the heat capacity of an unknown liquid with an unknown density.
Yale University
Yale University: General Chemistry Lab Techniques: Burets
Tutorial shows proper procedure for handling a buret and using this piece of laboratory equipment to measure liquid volume. View accompanying video full-length [18:00] or in segments.
Dartmouth College
Dartmouth College: Chem Lab: Scanning Spectrometer
The scanning spectrometer measures absorbance vs. wavelength for liquid samples. Directions on how to use this instrument are provided here.
TeachEngineering
Teach Engineering: Density Column Lab Part 2
Concluding a two-part lab activity, students use triple balance beams and graduated cylinders to take measurements and calculate densities of several household liquids and compare them to the densities of irregularly shaped objects (as...
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Comparing Densities of Different Liquids
This lab experiment has students observe and compare the density of five different liquids while measuring mass and volume.
PBS
Pbs Kids Afterschool Adventure!: Operation: Appetite for Fractions Activity Plan
In this week's Afterschool Adventure, Appetite for Fractions, children will explore fractions as they help create, divvy up, and serve a variety of real and virtual snacks.
Science Education Resource Center at Carleton College
Serc: Fluid Viscosity
To give students a feeling for both what viscosity values are and how they are measured in the lab, they measure fluid viscosity by dropping ball bearings into graduated cylinders of fluids.
Science Education Resource Center at Carleton College
Serc: Mn Step: Study of Student Precision Using Volumetric Glassware
This activity is an exercise in using various lab equipment for measuring the volume of a liquid. Data is recorded on a spreadsheet and analyzed to see which tool offers the greatest precision.